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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
06/07/2021 |
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Data da última atualização: |
28/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MACHADO, R. C.; SILVA, A. B. S. da; ANDRADE, D. F. de; PINHEIRO, F. C.; WILLIAMS, C. B.; DONATI, G. L.; NOGUEIRA, A. R. de A.; PEREIRA FILHO, E. R. |
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Afiliação: |
RAQUEL CARDOSO MACHADO, UFSCAR; ANA BEATRIZ SANTOS DA SILVA, UFSCAR; DANIEL FERNANDES DE ANDRADE, UFSCAR; FERNANDA COSTA PINHEIRO, UFSCAR; CHARLES B. WILLIAMS, Davidson College; GEORGE LUIS DONATI, Wake Forest University; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; EDENIR RODRIGUES PEREIRA FILHO, UFSCAR. |
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Título: |
Alternative approaches applied to inductively coupled plasma techniques: multi-flow and two-flow calibration. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of the Brazilian Chemical Society, v.32, n.4, 2021. |
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Páginas: |
p.842-851. |
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ISSN: |
0103-5053 |
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DOI: |
https://dx.doi.org/10.21577/0103-5053.20200235 |
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Idioma: |
Inglês |
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Conteúdo: |
Multi-flow calibration (MFC) is based on monitoring the analytical signal from a single calibration standard solution at several different nebulization gas flow rates (Q), which normalizes plasma conditions and minimizes matrix effects. In the present study, MFC was evaluated, for the first time, applied to inductively coupled plasma optical emission spectrometry (ICP OES) and inductively coupled plasma mass spectrometry (ICP-MS) to analyze different and complexmatrix samples. Al, As, Cd, Cr, Cu, Mn, Pb, and Zn were determined by ICP OES, while As, Cd, Co, Cu, Hg, Mo, Mn, Ni, Se, Sb, Pb, and V were determined by ICP-MS. MFC results were compared with those obtained using external standard calibration (EC) for both techniques and in all cases, MFC showed equal or superior accuracy (recoveries between 80-120%) compared to EC, and lower relative standard deviation (RSDs < 10%). Several tests were also performed using only two nebulization gas flows to build linear models for calibration (called two-flow calibration, TFC) and the accurate results (recoveries ranged from 80 to 110% for ICP OES and from 81 to 102% for ICP-MS) suggests that this strategy can be also applied, resulting in a method with high sample throughput. |
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Palavras-Chave: |
Calibration strategy; ICP OES; ICP-MS; Matrix effects; Nebulization gas. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/224314/1/Alternative-Approaches-Applied.pdf
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Marc: |
LEADER 02162naa a2200301 a 4500
001 2132812
005 2021-09-28
008 2021 bl uuuu u00u1 u #d
022 $a0103-5053
024 7 $ahttps://dx.doi.org/10.21577/0103-5053.20200235$2DOI
100 1 $aMACHADO, R. C.
245 $aAlternative approaches applied to inductively coupled plasma techniques$bmulti-flow and two-flow calibration.$h[electronic resource]
260 $c2021
300 $ap.842-851.
520 $aMulti-flow calibration (MFC) is based on monitoring the analytical signal from a single calibration standard solution at several different nebulization gas flow rates (Q), which normalizes plasma conditions and minimizes matrix effects. In the present study, MFC was evaluated, for the first time, applied to inductively coupled plasma optical emission spectrometry (ICP OES) and inductively coupled plasma mass spectrometry (ICP-MS) to analyze different and complexmatrix samples. Al, As, Cd, Cr, Cu, Mn, Pb, and Zn were determined by ICP OES, while As, Cd, Co, Cu, Hg, Mo, Mn, Ni, Se, Sb, Pb, and V were determined by ICP-MS. MFC results were compared with those obtained using external standard calibration (EC) for both techniques and in all cases, MFC showed equal or superior accuracy (recoveries between 80-120%) compared to EC, and lower relative standard deviation (RSDs < 10%). Several tests were also performed using only two nebulization gas flows to build linear models for calibration (called two-flow calibration, TFC) and the accurate results (recoveries ranged from 80 to 110% for ICP OES and from 81 to 102% for ICP-MS) suggests that this strategy can be also applied, resulting in a method with high sample throughput.
653 $aCalibration strategy
653 $aICP OES
653 $aICP-MS
653 $aMatrix effects
653 $aNebulization gas
700 1 $aSILVA, A. B. S. da
700 1 $aANDRADE, D. F. de
700 1 $aPINHEIRO, F. C.
700 1 $aWILLIAMS, C. B.
700 1 $aDONATI, G. L.
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aPEREIRA FILHO, E. R.
773 $tJournal of the Brazilian Chemical Society$gv.32, n.4, 2021.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
29/01/2013 |
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Data da última atualização: |
19/02/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 5 |
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Autoria: |
ALMEIDA, R. L. da S. A.; CHAVES, L. H. G. C.; SILVA, E. F. da. |
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Afiliação: |
Roger Luiz Da Silva Almeida, UNIVERSIDADE FEDERAL DE CAMPINA GRANDE; Lucia Helena Garófalo Chaves, UNIVERSIDADE FEDERAL DE CAMPINA GRANDE; ENIO FRAGA DA SILVA, CNPS. |
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Título: |
Growth of cocoa as function of fertigation with nitrogen. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Iranica Journal of Energy & Environment, v. 3, n. 4, p. 385-389, 2012. |
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Páginas: |
4 p. |
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Idioma: |
Português |
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Conteúdo: |
The effect of irrigation and nitrogen fertilization on the growth characteristics of cocoa (Theobroma cacao L.), specifically the clone CCN-51, was evaluate in a field experiment conducted on the period from August 2010 to June 2011 in Jequié city, Bahia State, Brazil. The experimental area, approximately 0.18 ha with the planting of cocoa clonal CCN- 51 in Yellow Oxisol was irrigated drip emitters. The statistical experimental design was randomized blocks with four replications where the factors water level and nitrogen level were factorial combined resulting in the 16 treatments. During the experimental period were measured plant height in plant height and stem diameter. The biometric variables responded to treatments. The water level used in this study negatively affected the plant growth. The nitrogen level used in this study positively influenced the plant growth. The relative growth rate in relation to the plant height and stem diameter, on average, corresponded to about 14% and 15%, respectively. |
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Palavras-Chave: |
Drip irrigation; Theobroma cacao L. |
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Thesaurus NAL: |
fertigation. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01586naa a2200193 a 4500
001 1946759
005 2013-02-19
008 2012 bl uuuu u00u1 u #d
100 1 $aALMEIDA, R. L. da S. A.
245 $aGrowth of cocoa as function of fertigation with nitrogen.$h[electronic resource]
260 $c2012
300 $a4 p.
520 $aThe effect of irrigation and nitrogen fertilization on the growth characteristics of cocoa (Theobroma cacao L.), specifically the clone CCN-51, was evaluate in a field experiment conducted on the period from August 2010 to June 2011 in Jequié city, Bahia State, Brazil. The experimental area, approximately 0.18 ha with the planting of cocoa clonal CCN- 51 in Yellow Oxisol was irrigated drip emitters. The statistical experimental design was randomized blocks with four replications where the factors water level and nitrogen level were factorial combined resulting in the 16 treatments. During the experimental period were measured plant height in plant height and stem diameter. The biometric variables responded to treatments. The water level used in this study negatively affected the plant growth. The nitrogen level used in this study positively influenced the plant growth. The relative growth rate in relation to the plant height and stem diameter, on average, corresponded to about 14% and 15%, respectively.
650 $afertigation
653 $aDrip irrigation
653 $aTheobroma cacao L
700 1 $aCHAVES, L. H. G. C.
700 1 $aSILVA, E. F. da
773 $tIranica Journal of Energy & Environment$gv. 3, n. 4, p. 385-389, 2012.
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Embrapa Solos (CNPS) |
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